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47989b1503
In this change, tablet_virtual_task starts supporting tablet resize (i.e. split and merge). Users can see running resize tasks - finished tasks are not presented with the task manager API. A new task state "suspended" is added. If a resize was revoked, it will appear to users as suspended. We assume that the resize was revoked when the tablet number didn't change. Fixes: #21366. Fixes: #21367. No backport, new feature Closes scylladb/scylladb#21891 * github.com:scylladb/scylladb: test: boost: check resize_task_info in tablet_test.cc test: add tests to check revoked resize virtual tasks test: add tests to check the list of resize virtual tasks test: add tests to check spilt and merge virtual tasks status test: test_tablet_tasks: generalize functions replica: service: add split virtual task's children replica: service: pass parent info down to storage_group::split tasks: children of virtual tasks aren't internal by default tasks: initialize shard in task_info ctor service: extend tablet_virtual_task::abort service: retrun status_helper struct from tablet_virtual_task::get_status_helper service: extend tablet_virtual_task::wait tasks: add suspended task state service: extend tablet_virtual_task::get_status service: extend tablet_virtual_task::contains service: extend tablet_virtual_task::get_stats service: add service::task_manager_module::get_nodes tasks: add task_manager::get_nodes tasks: drop noexcept from module::get_nodes replica: service: add resize_task_info static column to system.tablets locator: extend tablet_task_info to cover resize tasks